<template>
    <div class="photo-con">
       <div id="slider" class="mui-slider">
           <div id="sliderSegmebteControl"
                class="mui-scroll-wrapper mui-slider-indicator mui-segmented-control mui-segmented-control-inverted">
               <div class="mui-scroll">
                   <a :class="['mui-control-item',cateId==item.id?'mui-active':'']" v-for="item in cates" :key="item.id"
                   @tap="getPhotoListByCateId(item.id)">
                       {{item.title}}
                   </a>
               </div>
           </div>
       </div>
        <!--图片列表-->
        <div class="photo-list">
            <router-link v-for="item in list" :key="item.id" :to="{name:'photo_show',params:{id:item.id}}" tag="li">
                <img v-lazy="item.img_url">
                <div class="info">
                    <h1 class="info-title">{{item.title}}</h1>
                    <div class="info-body">{{item.zhaiyao}}</div>
                </div>
            </router-link>
        </div>
    </div>
</template>

<script>
    import mui from '../../lib/mui/js/mui.min'
    export default {
       data(){
           return{
               cates:[],//分类列表数据
               list:[],//图片列表数据
               cateId:0
           }
       },
        created() {
           this.getAllCategory();
           this.getPhotoListByCateId(0);
        },
        mounted(){
          //初始化scroll滑动控件
          mui('mui-scroll-wrapper').scroll({
              deceleration:0.0005
          })
        },
        methods:{
           //获取图片分类
            getAllCategory(){
                this.$http.get('photo/getimgcategory').then(result =>{
                    if (result.data.status === 0){
                        result.data.message.unshift({title:'全部',id:0});
                        this.cates = result.data.message
                    }else {
                        this.$toast('加载失败')
                    }
                })
            },
            getPhotoListByCateId(cateId){
                this.cateId = cateId
                //根据分类id，获取图片列表
                this.$http.get('photo/getimages',{params:{id:cateId}}).then(result =>{
                    if (result.data.status === 0){
                        this.list = result.data.message
                    }
                })
            }
        }
    }
</script>

<style lang="scss">
    * {
        touch-action: pan-y; /*去除警告*/
    }
    .photo-list {
        list-style: none;
        margin: 0;
        padding: 10px;
        padding-bottom: 0;
        li {
            background-color: #ccc;
            text-align: center;
            margin-bottom: 5px;
            box-shadow: 0 0 9px #999;
            position: relative;
            img {
                width: 100%;
                vertical-align: middle;
            }
            img[lazy="loading"] {
                width: 40px;
                height: 300px;
                margin: auto;
            }
            .info {
                color: white;
                text-align: left;
                position: absolute;
                bottom: 0;
                background-color: rgba(0, 0, 0, 0.4);
                max-height: 84px;
                .info-title {
                    font-size: 14px;
                }
                .info-body {
                    font-size: 13px;
                }
            }
        }
    }
</style>
